1、pod 操作命令

kubectl get po --all-namespaces （显示所有节点）
kubectl get pods --all-namespaces -o wide （查看pod详细信息）
kubectl describe po devops-ci-backend-765fbd6cb4-9zx7g -n c7n-system
kubectl exec devops-ci-backend-7b47b7cd6-rzstx -n c7n-system -it /bin/sh
kubectl exec tomcat -pod-id -n [namespace] --netstat -tnl（查看pod端口）
kubectl delete po <your-pod-name> -n <name-space> --force --grace-period=0

批量删除pod
kubectl get pods -A --no-headers=true | awk '$2 ~ /^kibana-login-syncer/ {print $2}' | xargs kubectl delete pod -n efk-system --force --grace-period=0
kubectl get pods -n istio-system | grep Evicted | awk '{print $1}' | xargs kubectl delete pod -n istio-system
kubectl get pods -n istio-system | grep ContainerStatusUnknown | awk '{print $1}' | xargs kubectl delete pod -n istio-system
kubectl get pods -n istio-system | grep Completed | awk '{print $1}' | xargs kubectl delete pod -n istio-system

# 批量删除命令
kubectl get pods -n kube-system | grep kube-proxy | awk '{print $1}' | xargs kubectl delete pods -n kube-system

2、pod monitor 命令

kubectl top pod -n steam-system
kubectl get pod -n steam-uat --watch

3、pod log 命令

kubectl logs --tail=100 devops-ci-backend-7f95bbc4d8-8v66n -n c7n-system
kubectl logs --since=2m devops-ci-backend-7f95bbc4d8-8v66n -n c7n-system
kubectl logs -f anubis-helm-86798d8cfb-lbnlh -c anubis-server -n c7n-system

4、deployment 操作命令

kubectl rollout history deployment devops-ci --namespace=steam-uat
kubectl rollout history deployment devops-ci -n steam-uat --revision=183
kubectl rollout undo deployment/devops-ci -n steam-uat --to-revision=2

pod 扩容
kubectl scale --replicas=8 deployment spark-worker-deployment -n c7n-system

5、node 操作命令

设置当前节点不可调度（在client机器上面执行）
kubectl cordon jtdopsvpca03
kubectl uncordon jtdopsvpca03 --delete-local-data --force --ignore-daemonsets

设置当前节点可调度（在client机器上面执行）
kubectl uncordon jtdopsvpca03

节点下线
kubectl delete node jtdopsvpca03

6、namespace 操作命令

kubectl get ns
kubectl create namespace kube-app

7、pv/pvc 操作命令

kubectl get pvc -n gitlab
kubectl get pv -n gitlab
kubectl describe pv gitlab-mysql-pv -n gitlab

8、configmap操作命令

kubectl edit configmap gitlab-cm -n gitlab

配置命令

kubectl config view

查看全局限制

kubectl get LimitRange --all-namespaces

权限命令

kubectl get role
kubectl get clusterrole admin -o yaml

Security命令

kubectl create security tls tomcat-ingress-security --cert=tls.cert --key=tls.key

查看k8s命令文档

kubectl api-versions
kubectl explain pods
kubectl explain pods.metadata

kubelet

启动服务 systemctl start kubelet / service kubelet start
重启服务 systemctl restart kubelet / service kubelet restart
关闭服务 systemctl stop kubelet / service kubelet stop
查看服务状态 systemctl status kubelet / service kubelet reload
加入到启动项 systemctl enable kubelet / service kubelet status

集群命令

kubectl cluster-info
kubectl get nodes

节点下线

# 标记节点为不可调度
kubectl cordon node1

# 驱逐节点上的 Pod
kubectl drain node1 --ignore-daemonsets --delete-emptydir-data

# 确认节点已清空
kubectl get pods --all-namespaces -o wide | grep node1

# 如果确定节点已清空，可以选择删除节点
kubectl delete node node1```